<template>
  <div>
    <header class="header">
      <!-- 头部的第一行 -->
      <div class="top">
        <div class="container">
          <div class="loginList">
            <p>尚品汇欢迎您！</p>
            <!-- 登录后才能呈现的元素 -->
            <p v-if="userInfo.id">
              <span>{{ userInfo.nickName }}</span>
              <a class="register" @click.prevent="logoutHandler">退出登录</a>
            </p>
            <p v-else>
              <span>请</span>
              <router-link to="/login">登录</router-link>
              <router-link to="/register" class="register">免费注册</router-link>
            </p>
          </div>
          <div class="typeList">
            <router-link to="/center">我的订单</router-link>
            <router-link to="/cart">我的购物车</router-link>
            <a href="###">我的尚品汇</a>
            <a href="###">尚品汇会员</a>
            <a href="###">企业采购</a>
            <a href="###">关注尚品汇</a>
            <a href="###">合作招商</a>
            <a href="###">商家后台</a>
          </div>
        </div>
      </div>
      <!--头部第二行 搜索区域-->
      <div class="bottom">
        <h1 class="logoArea">
          <a class="logo" title="尚品汇" @click="toHome">
            <img src="./images/logo.png" alt="" />
          </a>
        </h1>
        <div class="searchArea" v-show="!$route.meta.isHiddenFooter">
          <form class="searchForm">
            <input type="text" id="autocomplete" class="input-error input-xxlarge" v-model.trim="keyword"
              @keydown.enter.prevent="clearKeyword" />
            <button class="sui-btn btn-xlarge btn-danger" @click="buttonHandler" type="button">
              搜索
            </button>
          </form>
        </div>
      </div>
    </header>
  </div>
</template>
<script>
import { defineComponent } from "vue";
export default defineComponent({
  name: "header_vue",
});
</script>

<script setup>
import { computed, ref, reactive, onMounted, onBeforeUnmount } from "vue";
import { useUserInfoStore } from "@/stores/user";
import { useRouter, useRoute } from "vue-router";
import emitter from '@/utils/bus';

// store
const userInfoStore = useUserInfoStore();

// userInfo
const userInfo = computed(() => {
  return userInfoStore.userInfo;
});

// key
const keyword = ref("");

// router
const router = useRouter();
const route = useRoute();

// 搜索按钮
const buttonHandler = () => {
  router.push({
    path: "/search",
    query: {
      ...route.query,
      keyword: keyword.value || undefined,
    },
  });
  clearKeyword();
};

// 点击图标返回首页
const toHome = () => {
  router.push("/home");
  keyword.value = "";
};

// 登出按钮
const logoutHandler = () => {
  ElMessageBox.confirm("是否要退出登陆？", "提示", {
    confirmButtonText: "确认退出",
    cancelButtonText: "取消",
    type: "warning",
    center: true,
  })
    .then(() => {
      userInfoStore.clearUserInfo();

      ElMessage({
        type: "success",
        message: "退出成功",
      });
    })
    .catch(() => {
      ElMessage({
        type: "info",
        message: "取消退出",
      });
    });
};

const clearKeyword = () => {
  console.log('222');
  keyword.value = '';
};
onMounted(() => {
  emitter.on('clearKeyword', clearKeyword);
});
// onBeforeUnmount(() => {
//   emitter.off('clearKeyword');
// });
</script>

<style lang='less' scoped>
.header {
  &>.top {
    background-color: #eaeaea;
    height: 30px;
    line-height: 30px;

    .container {
      width: 1200px;
      margin: 0 auto;
      overflow: hidden;

      .loginList {
        float: left;

        p {
          float: left;
          margin-right: 10px;

          .register {
            border-left: 1px solid #b3aeae;
            padding: 0 5px;
            margin-left: 5px;
            cursor: pointer;
          }
        }
      }

      .typeList {
        float: right;

        a {
          padding: 0 10px;

          &+a {
            border-left: 1px solid #b3aeae;
          }
        }
      }
    }
  }

  &>.bottom {
    width: 1200px;
    margin: 0 auto;
    overflow: hidden;

    .logoArea {
      float: left;

      .logo {
        img {
          width: 175px;
          margin: 25px 45px;
          cursor: pointer;
        }
      }
    }

    .searchArea {
      float: right;
      margin-top: 35px;

      .searchForm {
        overflow: hidden;

        input {
          box-sizing: border-box;
          width: 490px;
          height: 32px;
          padding: 0px 4px;
          border: 2px solid #ea4a36;
          float: left;

          &:focus {
            outline: none;
          }
        }

        button {
          height: 32px;
          width: 68px;
          background-color: #ea4a36;
          border: none;
          color: #fff;
          float: left;
          cursor: pointer;

          &:focus {
            outline: none;
          }
        }
      }
    }
  }
}
</style>